Window screen



Mmch 27, 1934. w EBERHARDT 1,952,704

7 WINDOW SCREEN Filed March 5, 1930 I N VEN TOR A TTORNEY.

Patented Mar. 27, 1934 UNITED STATES PATENT-OFFICE"i;-

Walter Eberhardt, Chicago, Ill. Application March 5, 1930, Serial 'No. 433,223-

2 Claims.

The invention relates to window screens and the object of the invention is to provide a screen locking means. Another object of the invention is to provide a locking means for a screenof the spring roller type.

Another object is to provide a locking plate which is provided with a slot adapted to receive a pintle of a spring roller, the pintle being supported by a lever pivotally mounted on the plate, and a locking lever which is adapted to engage the supporting lever andis urged into locking position by a spring.

Other objects of the invention not specifically mentioned, may be easily ascertained and understood from the following description in con-' nection with the accompanying drawing forming a part thereof. It is however to be noted, that the invention is not to be limited or restricted to the exact construction and formation shown in the drawing and described in the specification, but that saidinvention is only'to be limited by the scope of the claims appended hereto. In the drawing illustrating a preferred em- 'bodiment of the invention:

Fig. 1 is a vertical sectional view through a window equipped with screens according to the present invention.

Fig. 2 is an end view of a lower window sash equipped with a screen according to the present invention.

Fig. 3 is a front view of the bottom roller containing the screen and the holders, which are .adapted to be fastened to the window frame and to removably receive said roller.

Fig. 4 is a plane view of a mechanism adapted to hold and lock a screen according to the present invention in a certain position.

Fig. 5 is an end view of Fig. 4, and Fig. 6 is a sectional view taken on line 66 of Fig. 3.

The screen proper 10 is made of a woven metal material, which is pliable enough to be rolled ,upon a roller similar to a roller shade used on -windows. The roller itself is controlled by a spring and the roller, the spring and the screen fastened to and rolled upon said roller is then inserted in a hollow tube 11 provided with a slot 12 through which the free end of the screen ''-may extend. The construction of the roller is not shown or described in detail since it does not form a part of the present invention and is well known, because it is of the same kind and construction as in every day use in connection "-with roller shades. On the lower end of the window frame a pair of holders 13 are provided,

one on each side of said frame. The holder forms a housing, which is provided with two slots extending from the inside of the window towards the outside. The upper slot is adapted to receive one of the supporting ends of the window shade roller and in order to hold the roller removably in place a lever 14 is pivotally mounted inside the housing 13 as indicated at 15 and a spring 16, also arranged inside the housing, engages the inner end of said lever and urges the same into such a position, that the inner end of the lever will hold an end of the roller, when it is forced into the upper slot 1'7 of the housing as shown in Fig. 3. the roller and thereby remove the whole roller from the holder, it is only necessary to press the outward part of the lever 14 downwardly'thereby releasing the ends 18 of the roller so, that the roller may be slid out from the holders. Adjacent the lower end of the holder the second slot 19 is provided which is adapted to receive a flange 20 fastened to each of the end pieces 21, closing the ends of the lower tubular housing 11. When the end walls 21 are fastened to the tubular housing 11, the ends 18 of the roller extend through said end walls and in order to place the lower screen in position, it is only necessary to force the unit into the holders, so that the flanges 20 will be located in the lower slots 19 and the two end pieces 18 will be forced into the slot 17, where they will be held in position by means of the lever 14 and the spring 16. The bottom member 22 of the frame of the lower sash 23 and. on the free end of the lower screen co-operating hook-members 24 and 25 respectively are provided, which may engage each other, so that the lower screen 10 will be pulled upwardly, when the lower sash is moved upwardly providing that the two hook members are in engagement with each other. When the lower sash is moved downwardly into window closing position again, the spring (not shown) controlling the roller, will pull the screen into the housing 11 and roll it upon the roller arranged therein. If desired guide members 26 may be provided on the side members of the window frame to guide the screen in its upward and downward movement and keep it from buckling and from moving away from the window opening.

The screen for the upper part of the window is practically the same as for the lower part with the exception, that the end walls closing the tubular housing 11 for the upper screens do not have the flange 20. The holders for the upper In order to remove the ends of 70 is in 'ro 'er ho ding screens are somewhat different from the lower holders and are of the following construction:

A U-shaped plate 27 has an upward extending flange 28 in which a plurality of holes 29 are provided to permit said plate to be fastened by screws onto the side-members of the window frame. In addition to that, a hole 30 is provided in the plate itself, and this hole is surrounded by a boss 31, the inner end whereof is located in thesame plane with the inner face of the flange 28 and with the inner edge of the upper bent-over part of the U-plate, so that these three faces will abut the surface of the side members of the window frame. A slot 32 extends from the upper portion of the plate downwardly and a forked lever 33 is pivotally mounted on the U-plate as indicated at 34. The forked end of the lever extends inwardly and when the le"- ver is free to pivot, it will swing downwardly. The slot in the fork must then register with the lower end of the slot 32, so that an end 18 of a roller may be ms'r'teesimm anetusry' mum two slots. The 16; of the fork be long e' "o'ugh to permit the roller being moved upwar'dly in the slot 3'2, whrety then the em 18 will slide deeper into the slot of the fork and willpivot the lever 33 into the position shown in Fig. 4. A iotkm g lev r 35 is pivotally fi'muiitedfon the U -shap'e"d plate as indicated at 36. 'I lis /locking lever has "a finger piece 37 ektehding through a slot provided in the upper bentoff serum or the ll-shaped platefand a ieekmg han eeje, whih is adapted to engage the short end of the fomi ver 33, when the same "position "as in Fig. 4. A s r ng 39 is pro ed ur n the locking ievei es into locking position. The free end of the upper screen 11 and the top member 61 the upper sash "frame are provided with to- I operating hook 'inefnl'o'ers "in the same manner the lower fiafii "andthe lower screen, so that this 'uppeir scr'e'e'n "win be pulled 'aownwarm over the upper part of the window opening, when the upper sash is moved downwardly. When the upper sash is moved upwardly again the screen will be rolled up in the well known manner of a roller shade. Should it be necessary to remove the upper screen, it is only necessary to pivot the locking member 35, so that it will disengage the short end of the fork lever 33, when the latter will pivot about its pin 34 and will swing downwardly thereby releasing the end 18 and permitting the same to be slid out of the slot 32. When the fork lever is in this position, the lock lever will be pulled against said lever by means 'of the spring 39, so that the fork lever will be held 'etilely in a position adapted to permit the insertion of the ends of the roller of the upper Having described my invention and how the same is to be performed, I claim as new and desire to secure by Letters Patent:

1. In a device of the class described a U-shaped holding plate, said plate being provided with a slot adapted to receive a pinue of a spring roller, a pintle supporting lever pivotally mounted on Said mate al'ld, adapted to su port a pintle, a

locking lever pivbt'ally mounted on said holding plate and adapted to engage the supporting lever, and a spring adapted to urge the locking lever into locking position.

2. In Her/lite of the class described a "U -shaped holding plate being provided with a 'slot, a pintle on a roller, 's'aid slot being adapted to recei've said pintle, a forked sup orting lever pivotally mounted on the holder plate, the fork of the lever coiiie'i'dih'g with the slot in 'saidpla'te so that 'Safd pihtl'e will engage Salli fOI'k when inserted ihtos'a'id slot, a locking Iev er adapted to engage said 'suppbrtinfg lever and secure it in piiljtl'e supporting position, and a urgmg said lo'ckihg Iever into rocking position.

WALTER EBERHARDT. 

